EuRBPDB

Haplochromis_burtoniFamily: CAF1 Number of Genes: 4
Ensembl IDSymbolEntrez IDRBD RBPome PRIExpresion PathwayPhenotype ParalogOrthologGO
cnot7
toe1
cnot8
parn

Introduction

Pfam

The major pathways of mRNA turnover in eukaryotes initiate with shortening of the polyA tail. CAF1 P39008 encodes a critical component of the major cytoplasmic deadenylase in yeast. Both Caf1p is required for normal mRNA deadenylation in vivo and localises to the cytoplasm. Caf1p copurifies with a Ccr4p-dependent polyA-specific exonuclease activity. Some members of this family include and inserted RNA binding domain PF01424. This family of proteins is related to other exonucleases PF00929 (Bateman A pers. obs.). The crystal structure of Saccharomyces cerevisiae Pop2 (P39008) has been resolved at 2.3 Angstrom resolution [3].

InterPro

The major pathways of mRNA turnover in eukaryotes initiate with shortening of the poly(A) tail. CAF1 (also known as CCR4-associated factor 1) is an RNase of the DEDD superfamily, and a subunit of the CCR4-NOT complex that mediates 3' to 5' mRNA deadenylation [PUBMED:15215893, PUBMED:15769875]. In yeast, CAF1 (SWISSPROT) is also known as POP2, and encodes a critical component of the major cytoplasmic deadenylase [PUBMED:11410650, PUBMED:11239395]. It is required for normal mRNA deadenylation in vivo and localises to the cytoplasm. CAF1 copurifies with a CCR4-dependent poly(A)-specific exonuclease activity. The crystal structure of Saccharomyces cerevisiae POP2 has been resolved [PUBMED:14618157].

Reference

  1. Tucker M, Valencia-Sanchez MA, Staples RR, Chen J, Denis CL, Parker R; , Cell 2001;104:377-386.: The transcription factor associated Ccr4 and Caf1 proteins are components of the major cytoplasmic mRNA deadenylase in Saccharomyces cerevisiae. PUBMED:11239395 EPMC:11239395 .

  2. Korner CG, Wormington M, Muckenthaler M, Schneider S, Dehlin E, Wahle E; , EMBO J 1998;17:5427-5437.: The deadenylating nuclease (DAN) is involved in poly(A) tail removal during the meiotic maturation of Xenopus oocytes. PUBMED:9736620 EPMC:9736620 .

  3. Thore S, Mauxion F, Seraphin B, Suck D; , EMBO Rep 2003;4:1150-1155.: X-ray structure and activity of the yeast Pop2 protein: a nuclease subunit of the mRNA deadenylase complex. PUBMED:14618157 EPMC:14618157.